Profile: Basement Systems Winnipeg specializes in basement waterproofing, crawl space, & foundation repair. We use push pier system to transfer the weight of the building through the piers from unstable soil to competent soil or bedrock. The push pier system can stabilize settled foundations, and can even lift the structure back to its original position. We install helical pier systems for lighter structures, porches, patios, and other structures that are sagging and showing fatigue. Helical piers are mechanically screwed into the soil to assure permanent stabilization. They can be used as an alternative to the push pier system in some situations, and are commonly used in new constructions. Helical piers are usually installed with small construction equipment, but can be installed with hand equipment in tight spaces. Crawl space ventilation involves installing vented openings in cross-sectional area equal to 1/150 of the floor area served. These crawl space vents are usually fitted with a covering. The covering is installed to prevent infestations from rodents and animals, but they cannot prevent insects such as termites and carpenter ants.